Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is a Fluorescent Lamp?Fluorescent Lamp DefinitionA fluorescent lamp is a low-weight mercury vapor lamp that uses fluorescence to produce visible light.EfficiencyFluorescent lamps are more efficient than incandescent lamps, with a luminous efficacy of 50 to 100 lumens per watt.Working Principle of Fluorescent LampWhen powered on, a voltage surge ionizes the gas mixture in the tube, causing mercury atoms to emit ultraviolet light, which excites the phosphor coating to produce visible light.Ci

The circuit diagram of straight tubular fluorescent lamp without starter

Circuit for reuse of discarded fluorescent lamps

Dimming circuit for fluorescent lamp

What is an Arc Lamp?An arc lamp is a type of electric lamp which produces light by creating an arc in the space between two electrodes when electrical energy is supplied. In the early 1800s, Sir Humphry Davy invented the first arc lamp. In that first lamp, two electrodes of carbon were used. The arc was produced between the electrodes in the air. It was used in searchlights, movie projectors (high-intensity light).Nowadays, gas discharge lamps are widely used. It is preferred to carbon arc lamps

Required Wiring ComponentsA tube light is not connected in the supply main directly. Although it operates at 230 V, 50 Hz, some auxiliary electrical components are used to insert in this installation to support the tube light operational principle. The total electrical components for single tube light installation are Choke: it is electromagnetic ballast orelectronic ballast Starter: Small neon glow up lamp Switch WiresPlease ensure that you take the appropriate electrical safety precautions whe

What is Tube Light?Tube shaped fluorescent lamp is termed as tube light. Tube light is a lamp that works on low pressure mercury vapor discharge phenomenon and converts ultra violate ray into visible ray with the help of phosphor coated inside glass tube.Material Used Inside the Tube LightThe materials used to build a tube light are given below. Filament coils as electrodes Phosphor coated glass bulb Mercury drop Inert gases (argon) Electrode shield End cap Glass stemAuxiliary Electrical Compone

A fluorescent tube light consists of a lime glass tube drop of mercury argon gas phosphor coating electrode coils mounting assemblies aluminum capTotal set up of a lamp requires two bases and electromagnetic ballast or choke coil with a starter. The electrode mount assemblies are at both the ends of lamp tube. This electrode mounting assembly is almost similar to the stem press unit in the incandescent lamps. The electrode is similar to theincandescent lampfilament. The filaments of electrodes p

What is Electronic Ballast?An electronic ballast (or electrical ballast) is a device that controls the starting voltage and the operating currents of lighting devices.It does this through the principle of electrical gas discharge. An electronic ballast will convert power frequency to a very high frequency to initialize the gas discharge process in Fluorescent Lamps – by controlling the voltage across the lamp and current through the lamp.Use of Electronics BallastThere are some advantages to use

In case of fluorescent lamp the mercury vapour pressure is maintained at lower level such that 60% of the total input energy gets converted into 253.7 nm single line. Again transition of the electrons requires least amount of input energy from a colliding electron. As pressure increases the chance of multiple collisions gets increased. A schematic diagram of mercury lamp is shown below. This lamp is containing an inner quartz arc tube and outer borosilicate glass envelope. The quartz tube is abl